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Spiders: An Organism for Teaching Biology Activity 2: Student Designed Experiments Students should make a hypothesis and design a procedure to answer either one of the questions raised during class or their own question. Some topics students might want to investigate include: prey choice, cannibalism, eating other spiders--who wins, courtship, agnostic interactions, response to ants, flower choice in crab spiders, nest site choice, can web spiders find their retreats when you rotate their web? or something else the student chooses. Refer back to the students' questions which were written down on butcher paper. Have students write up their plan. Remind your students to include all of the following sections in their plan: hypothesis, materials, procedure, identify the control if appropriate, and indicate what data will be collected. Students will be given four different times over the next two weeks to do their experiments. If they need additional time, they will have to come in after class. A final lab report and presentation to the class is due at the completion of the experiment. Students should continue to record what the spiders are eating. The
University of Arizona
Department of Biochemistry and Molecular Biophysics General Biology Program for Secondary Teachers warder@email.arizona.edu http://biology.arizona.edu/sciconn |
